Which explains how they hijacked a drone.

http://www.csmonitor.com/World/Middle-East/2011/1215/Exclusive-Iran-hijacked-US-drone-says-Iranian-engineer-Video?google_editors_picks=true

Interesting article.

Make sure your boat is where you think it is... :-)

On Thu, 22 Dec 2011 01:17:43 -0500, wrote:

On Wed, 21 Dec 2011 18:35:03 -0500, Wayne.B
wrote:

Which explains how they hijacked a drone.

http://www.csmonitor.com/World/Middle-East/2011/1215/Exclusive-Iran-hijacked-US-drone-says-Iranian-engineer-Video?google_editors_picks=true

Interesting article.

Make sure your boat is where you think it is... :-)

I always wondered how secure GPS could be if a WiFi company could jam
them accidently

===

Jamming is easy compared to actual position spoofing which requires
precisely replicating the satellite data with altered signal timing.
Any strong signal on or near the GPS frequencies can overwhelm the
front end of the reciver however since the satellite signals are
relatively weak.

On 12/22/2011 6:42 AM, Wayne.B wrote:
On Thu, 22 Dec 2011 01:17:43 -0500, wrote:

On Wed, 21 Dec 2011 18:35:03 -0500, Wayne.B
wrote:

Which explains how they hijacked a drone.

http://www.csmonitor.com/World/Middle-East/2011/1215/Exclusive-Iran-hijacked-US-drone-says-Iranian-engineer-Video?google_editors_picks=true

Interesting article.

Make sure your boat is where you think it is... :-)
I always wondered how secure GPS could be if a WiFi company could jam
them accidently
===

Jamming is easy compared to actual position spoofing which requires
precisely replicating the satellite data with altered signal timing.
Any strong signal on or near the GPS frequencies can overwhelm the
front end of the reciver however since the satellite signals are
relatively weak.

Position spoofing or more accurately Electronic Counter Measures is not
new. We've been using ECM since the 60s.

On Thu, 22 Dec 2011 09:02:43 -0500, Oscar wrote:

Position spoofing or more accurately Electronic Counter Measures is not
new. We've been using ECM since the 60s.

===

Yes, that's mostly been with RADAR however which is a lot easier to
spoof than GPS. GPS relies on multiple, very accurate timing signals
which are synchronized with atomic clocks down to the range of
nano/micro seconds. RADAR signals operate mostly in the micro and
millisecond range and have no external time reference.